E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Perennial herb from a rhizome; stems decumbent to erect, 40-100 cm long, wingless, usually freely branched, usually long silky-hairy.

Leaves:
Alternate, pinnately compound with 2 leaflets; leaflets linear-elliptic, 2-5 cm long; tendrils present but often unbranched and scarcely grasping; stipules often as large as the leaflets, narrowly egg-shaped, lobed, the lower lobes to 1/2 as long as the upper.

Flowers:
Inflorescence a crowded, long-stalked, axillary cluster of 3 to 12 pea-like flowers; corollas yellow, 12-17 mm long, the banner longer than the wings and keel, the banner-claw shorter than the blade; calyces 6-8 mm long, strongly veined, the main veins hairy, the narrowly lanceolate teeth almost as long as the tube.

Fruits:
Pods, 2-3 cm long, 4-7 mm wide, fine-hairy or becoming glabrous; seeds 4 to 8.